通过对水平管束管间冷凝换热特性的试验研究 ,探讨并分析了冷却水流量以及不凝气体质量分数对管束冷凝换热的影响规律和机理 .试验结果表明 ,当有不凝气体存在时 ,冷凝放热系数最小值并不一定发生在最低排管上 ,冷凝放热系数最小值与冷却水流量和不凝气体质量分数均有关 .研究结果为凝汽器的进一步传热强化研究提供了依据 . Through the experimental research on the condensation heat transfer characteristics between horizontal tubes and bundles, the influence law and mechanism of the cooling water flow and the non-condensable gas mass fraction on the tube bundle condensation heat transfer were discussed and analyzed.The experimental results show that when there is a non-condensable gas, The minimum value of the condensation heat release coefficient does not necessarily occur in the lowest discharge pipe, and the minimum value of the condensation heat release coefficient is related to both the cooling water flow rate and the non-condensable gas mass fraction.The results provide the basis for the further heat transfer enhancement research of the condenser .